JPH0528938B2 - - Google Patents

Description

[Detailed Description of the Invention] -Field of Industrial Application- This invention enables character or graphic information on a manuscript to be
This relates to an image reading device that reads dimensional image information, and relates to an image reading device that has a structure in which a so-called flat bed image reading device having a transparent document table fixed on the top surface of the housing is added with a reading mechanism that automatically feeds sheet documents. It is.

-Summary of the Invention- The image reading device of the present invention has a plurality of pairs of rollers arranged at the bottom of a housing having a fixed transparent document platen on the top surface to form a horizontal paper path, and an automatic document feeder at both ends of the case. In addition to arranging a paper device and a stacker for scanned originals, an optical path switching means is provided for switching the optical path that passes through the imaging lens and reaches the light receiving surface of the image sensor between an upper transparent document table side and a lower paper path side. , an image reading device that can read documents both in a fixed state and in an automatic paper feeding state, has made it possible to downsize the device and expanded the range of documents that can be read in an automatic paper feeding state. be.

-Prior art- A flatbed type image reading device with a fixed transparent document platen on the top of the housing can scan thick documents such as books or bound documents because the document platen is fixed and the document is read in a stationary state. It has the advantage of being able to read even objects. However, when a large number of originals are read continuously, it is necessary to manually set each original on the original table, which results in a disadvantage that the work is complicated and inefficient.

Therefore, devices such as those shown in FIGS. 6 and 7, which are capable of reading documents by automatic paper feeding using a flatbed type image reading device, have been put into practical use.

In the device shown in FIG. 6, a document holder 3 facing a transparent document table 2 on the upper surface of a housing 1 is formed by a conveyor belt 31, an automatic paper feed mechanism 17 is provided at one end of the document holder 3, and the document is fed out from the automatic document feed mechanism 17. The conveyor belt 31 positions the original document 18 on the document table 2, reads the document, and transfers the read document to the conveyor belt 3.
1, the liquid is discharged to the stacker 19 on the opposite side.

In addition, the one shown in Fig. 7 has a transparent original platen 2 on the top surface.
A feed roller 32,
33, an automatic paper feed mechanism 17 is disposed above the paper passage, and a stacker 19 is disposed below the paper passage, and in the case of continuous reading, originals are sequentially passed through this paper passage 13. It is designed so that it can be read while reading. In addition, in FIGS. 6 and 7, 34 and 35 indicate the conveyor belt 31.
36 is a transparent plate provided on the reading side of the paper path 13, 11 is an image sensor, 12 is an imaging lens, 6, 9, and 10 are reflectors, and 7 and 20 illuminate the original. The light source lamp 4 is a carrier.

-Problems to be Solved by the Invention- However, in the conventional structure shown in FIG. 6, the original is forcibly moved on the original platen 2 made of a glass plate or the like by the frictional force of the conveyor belt 31. Therefore, it is difficult to accurately position the document due to slippage, and a large frictional load is applied from the document table 2 to the conveyor belt 31 in areas not intervening from the document, resulting in dirt on the surface of the document table 2. There is.

Furthermore, in the structure shown in FIG. 7, the height of the housing 1 is required to a certain extent, which becomes an obstacle when downsizing the device.The document is bent when passing through the paper path 13, so the document There was a problem that if the material was thick and slippery, it could not be fed properly.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a compact image reading device that is capable of efficiently reading a wide range of documents in both a fixed state and an automatic paper feeding state.

-Means for solving the problem- The image reading device according to the present invention has a housing 1
A fixed document table 2 made of a transparent plate provided on the top surface and a paper feed mechanism equipped with an automatic paper feed mechanism 17 are provided, and depending on the type of document, the document can be read in a fixed state and the document can be automatically fed. In an image reading device that is capable of reading data in a state in which the image sensor 1 is
The present invention is characterized in that a switching means is provided for switching the reading optical path leading to the paper path 1 to the document table 2 side and the paper path 13 side. As a more preferred embodiment of the present invention, the imaging lens 1
2 to the light receiving surface of the image sensor 11, the optical path switching means 5 and 6 switch the optical path to the light receiving surface of the image sensor 11 between the upper transparent document table side and the lower paper path side by utilizing the moving movement of the carrier 4 toward the home position A. The proposed structure is as follows.

-Function- A paper path 13 is formed separately from the fixed document table 2 at the bottom of the housing 1, and this is used to read automatically fed documents, so that the surface of the document table 2 is not soiled and the documents can be easily read. Accurate positioning is possible when reading. In addition, since the paper path 13 is formed horizontally at the bottom of the housing 1, the height of the housing as required in conventional devices is not required, and the entire device can be made smaller. Since the document is not bent, even thick documents can be read efficiently and easily. In addition, if the reading optical path between a fixed original and an automatically fed original is automatically converted using the movement of the carrier 4 from its home position, it is possible to It can be simplified by operator's operation.

-Embodiment- Fig. 1 is a longitudinal sectional view showing an embodiment of the present invention. In the figure, 1 is the housing of the device, 2 is a document table made of a transparent plate fixed to the top surface of the case 1, 3 is a document holder attached to the top surface of the document table 2 so as to be openable and closable, and 4
5 is a stationary member protruding from the carrier 4 facing the home position A; 6 is a reflecting mirror mounted on the carrier 4; is the light source lamp for document illumination installed in Carrier 4,
8 is a second carrier that runs at 1/2 the speed in the same direction as the carrier 4; 9 and 10 are intermediate mirrors mounted on the second carrier 8; 11 is an image sensor provided in a fixed position; and 12 is an image forming device. A lens, 13 generally shown is a paper path formed horizontally at the bottom of the housing 1, 14, 15, 16 are a plurality of pairs of rollers forming a paper feeding mechanism in the paper path 13, and 17 is installed at one end of the paper path. automatic paper feeding mechanism for originals, 1
Reference numeral 8 denotes a document loaded into the automatic paper feed mechanism 17, 19 a stacker installed at the other end of the paper path 13 to receive the read document, and 20 provided above the reading section B formed in the paper path 13. It is a light source lamp.

The reflecting mirror 6 is swingably mounted on the carrier 4, and its mounting structure and operation are shown in detail in FIGS. 2 to 4. In Figures 2 to 4,
24 is a holder that supports the reflector 6; 24a is an operating lever extending from the holder 24; 26 is an engagement rod that stands perpendicularly to the operating lever 24a; 22 and 25 are positioning members formed in the carrier 4, 27 is an engagement hole provided in the immovable member 5, 29 is a pin implanted in the carrier 4, and 30 is a holder for the reflector 6. Pin implanted on the side of 24, 2
3 is a spiral spring whose both ends are pivotally connected to pins 29 and 30. The optical path switching operation of the apparatus of the present invention will be described below with reference to FIGS. 2 to 4.

When the carrier 4, which is in the state of reading a document set on the document table 2 (FIG. 2), moves to the left in the figure and moves to the home position A side, an operating lever extending from the holder 24 of the reflector 6 is activated. The tip of 24a collides with the tip of stationary member 5 facing home position A, causing operation lever 24a to rotate clockwise around pivot pin 28 of holder 24. Then Carrier 4
The reflecting mirror 6, which had been positioned by the positioning member 22 fixedly attached to the positioning member 22 by the force of the spring 23, receives this turning force and is reversed 90 degrees against the force of the spring 23, and is positioned on the opposite side. Spring 2 to member 25
The pressing position is determined by 3 (see Figs. 3 and 4).
As the carrier 4 moves to the home position A in this way, the reflector 6 attached to the carrier 4 is reversed from the position shown by the solid line in FIG. The reading optical path P is switched to form a reading optical path R for the original that passes through the paper path 13, so that the reading unit B can continuously read the original that is continuously fed from the automatic paper feed mechanism 17. At this time, the operating lever 24
The engagement rod 26 integrally protruding from a rotates with the rotation of the operating lever 24a during the optical path switching operation described above, and is inserted into the engagement hole 27 of the stationary member 5. Become.

When the carrier 4 moves to the right in the figure and leaves the home position A from the state shown in FIG.
comes into contact with the edge of the engagement hole 27 and the operating lever 24a
Rotate counterclockwise around pin 28. Then, the reflecting mirror 6, which had been positioned by the positioning member 25 fixed to the carrier 4 and biased by the spring 23, receives this rotational force and turns 90 degrees while resisting the biasing force of the spring 23, and moves to the opposite side. The positioning member 22 is biased by a spring 23 and positioned (see FIGS. 3 and 2).
In this way, when the carrier 4 leaves the home position A, the reflector 6 automatically returns to its original position.
The optical path to the image sensor 11 is switched from R in FIG. 4 to P in FIG. 2, and a state is reached in which the original set on the original platen 2 is read.

FIG. 5 shows that the casing of the device according to the present invention is divided into upper and lower parts, and both are hinged at one side so that they can be opened and closed freely. This figure shows a structure that makes it easier to remove.

- Effects of the Invention - As described above, according to the present invention, the height of the housing of the device can be reduced, and the path for automatically fed documents can be formed in a straight line. Accordingly, it is possible to obtain an image reading device that can read a wide range of originals in both the automatic paper feeding mode and the automatic paper feeding state without being affected by the thickness of the paper. Furthermore, by rotating the reflector 90 degrees at the home position to switch the reading optical path, the switching means can be simplified, and the reading state with the document fixed and the reading state with automatic paper feeding can be automatically changed. Since the image sensor, imaging lens, etc. can be used in both reading states, the entire device can be made inexpensive and simple.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of the entire device according to the present invention, FIGS. 2 to 4 are side views showing the configuration and operation of the optical path switching mechanism, and FIG. 5 is an example of the housing structure of the device according to the present invention. 6 and 7 are vertical sectional views showing conventional devices. In the figure, 1: housing, 2: manuscript table, 4: carrier,
5: Fixed member, 6: Reflector, 13: Paper path, 1
4, 15, 16: roller pair, 17: automatic paper feeding mechanism, 22: positioning member, 23: spring, 24a:
Operation lever, 25: Positioning member, 26: Engagement rod, 27: Engagement hole, A: Home position, B:
Reading section, P, R: reading optical path.

[Claims]

1. A facsimile device that performs facsimile communication based on registered speed dial numbers, which includes a recording processing means (19) for recording the number of times each registered speed dial number has been used, and a recording processing means (19) that corresponds the recorded number of times of use to the speed dial number. A facsimile device comprising an output means (20) for outputting the same.

Claims (1)

3. The image reading device according to claim 2, wherein the reading optical path R is formed by inverting the reading optical path R by 90 degrees. 4 The reflecting mirror 6 has two position stop mechanisms 22, 23,
25 attached to the carrier 4, the stationary member 5 facing the home position A collides with the operating lever 24a of the reflecting mirror 6 to reverse the reflecting mirror 6. Image reader. 5 The immovable member 5 has a collision part and an engaging part 27, and when the carrier 4 moves in a direction away from the home position A, the operating lever 24a of the reflecting mirror 6 is operated by the engaging part 27. reflected mirror 6
5. The image reading device according to claim 4, wherein the image reading device returns to its original position.